Lab 10 - Muscle Lab I

Question 1

sternocleidomastoid

Answer 1

origin: sternum
insertion: occipital bone
action: rotation of head

Question 2

trapezius

Answer 2

origin: occipital bone
insertion: scapula
action: extension of head

Question 3

coracobrachialis

Answer 3

origin: scapula
insertion: humerus
action: adduction of humerus

Question 4

deltoid

Answer 4

origin: scapula
insertion: humerus
action: flexion of humerus

Question 5

latissimus dorsi

Answer 5

origin: lumbar vertebrae
insertion: humerus
action: adduction of humerus

Question 6

pectoralis major

Answer 6

origin: sternum
insertion: humerus
action: adduction of humerus

Question 7

supraspinatus

Answer 7

origin: scapula
insertion: humerus
action: flexion of humerus

Question 8

teres major

Answer 8

origin: scapula
insertion: humerus
action: adduction of humerus

Question 9

biceps brachii

Answer 9

origin: scapula
insertion: radius
action: flexion of forearm

Question 10

brachioradialis

Answer 10

origin: humerus
insertion: radius
action: flexion of forearm

Question 11

triceps brachii

Answer 11

origin: humerus
insertion: ulna
action: extension of forearm

Question 12

flexor carpi radialis

Answer 12

origin: humerus
insertion: metacarpals
action: flexion of hand

Question 13

extensor carpi raidalis

Answer 13

origin: humerus
insertion: metacarpals
action: extension of hand

Question 14

flexor carpi ulnaris

Answer 14

origin: humerus
insertion: metacarpals
action: flexion of hand